### D STONE. Groundwork Contractor

**Risk Assessment Sheet No 1**

| Site | Assessor | Date | Job | Control Measures to Minimize Risk (becomes level L/L) | |------|----------|------|-----|-----------------------------------------------------| | Lathkill Lodge | K Greenhalgh | 3rd June 2019 | Construct 100mm dia foul water only sewer connection to STVV Ltd's 375mm dia combined sewer in private land. |

| Activity | Potential Hazard | Probability | Severity | Risk Priority | |----------|------------------|-------------|----------|---------------| | Personal Safety | Be seen be safe from works operations | M | H | M/H | | Excavations | Striking underground services | M | H | H/H | | | Collapse of sides of excavation | M | H | M/H | | Ground Conditions | All excavation work is in private land owned by Stanton Estates | M | M | MM | | | Excavation of hard materials/rock if any in trench line by vibrating hand held tools | M | M | MM | | | Damage to hearing by using breaker or hand held vibrating tools | M | M | MM |

**Probability:**

- H - Certain or near certain to death
- M - Reasonably likely to occur
- L - Unlikely to occur

**Severity:**

- H - Fatality, major injury or illness causing long term disability
- M - Injury or illness causing short term disability
- L - Other injury or illness

**Risk Priority Rate = Probability x Severity** | Site | Assessor | Date | Job | |------|----------|------|-----| | Lathkill Lodge | K Greenhalgh | 3rd June 2019 | Construct 100mm dia foul water only sewer connection to STW Ltd's 375mm dia combined sewer in private land. |

| Plant and Machinery | M | H | M/H | |---------------------|---|---|-----| | Slew or reversing without warning | M | H | M/H | | Striking persons or property | zero | zero | zero | | Striking overhead power line or telephone | M | M | M/M | | Leaving plant unattended | M | H | M/H | | Striking traffic / persons | M | H | M/H |

| Loading / unloading materials | L | M | L/M | |-------------------------------|---|---|-----| | Trip Hazard | L | M | L/M |

| Lifting manhole lids | M | M | M/M | |----------------------|---|---|-----| | Damage to lumber region of back | M | H | M/H | | Damage to lumber region of back | M | M | M/M |

| Cutting pipes / hard material | M | H | M/H | |-------------------------------|---|---|-----| | Dust inhalation, and bits of material hitting eyes | M | H | M/H |

**Probability:**

- H - Certain or near certain to death
- M - Reasonably likely to occur
- L - Unlikely to occur

**Severity:**

- H - Fatality, major injury or illness causing long term disability
- M - Injury or illness causing short term disability
- L - Other injury or illness

**Risk Priority Rate = Probability x Severity** | Activity | Potential Hazard | Probability | Severity | Risk Priority | Control Measures to Minimize Risk | Risk becomes level | |----------|------------------|-------------|----------|---------------|----------------------------------|-------------------| | Entering foul water Trench | Possible presence of toxic or explosive gases illegally discharged into system | M | H | M / H | Only confined space trained persons to enter or trench following confined space procedure. Depth of work approx 2.0m. Where poss. manholes to be vented on system. Fixed ladder access to trench. Operatives to wear PPE. No smoking near open trench. | L / L | | | Heavy rain causing flow in system to increase | H | M | L / M | Monitor weather conditions. Stop work in flood conditions and no entry into trench. | | | | Infections and diseases from debris in system | M | M | M / M | Operatives have all had tetanus and hepatitis jabs. All to wear PPE at all times. Personal hygiene to be observed. No eating, drinking or smoking before removing PPE and washing hands. Open wounds to be protected with waterproof plasters. Welfare van with wash facilities on site. | | | Cutting saddle to 375mm dia clayware main sewer to make connection. | Carbon dioxide fumes from stihl saw, bits hitting into eyes | H | H | H / H | Only use stihl saw in short duration use. Dampen dust by water spray during cutting. Let dust and fumes disperse between cutting operation. Use face mask and goggles and gloves. | | | | Damage to hearing | M | M | M / M | Wear good quality ear defenders | | | | Excess volume of flow in sewer causing spray inhalation | M | M | M / M | Monitor volume of flow, no work in storm condition. Work only in dry weather flow. Welfare van with wash facilities on site to clean up afterwards | |

**Probability:**

- H - Certain or near certain to death
- M - Reasonably likely to occur
- L - Unlikely to occur

**Severity:**

- H - Fatality, major injury or illness causing long term disability
- M - Injury or illness causing short term disability
- L - Other injury or illness

**Risk Priority Rate = Probability x Severity** HEALTH AND SAFETY POLICY STATEMENT

INTRODUCTION

As Owner and Manager of D Stone, the responsibility for the Health and Safety of my employees and anyone else who may be affected by our works rests with me.

Compliance with the Health and Safety at Work Act 1974 underlines this policy statement.

My aim is to minimize risks that arise from the work we undertake and the service we provide.

Employees are aware of this policy. All employees must ensure that we work in a safe manner and where a safe system of work has been adopted that we work to that system.

BASIS OF POLICY

Our policy is to manage our business in such a manner that we provide and maintain an environment which is safe and healthy for all those whom we have contact.

A) We will provide and maintain safe systems of work supported by safe working practices.

B) We will ensure that our employees are encouraged to openly express any concerns they have about health and safety issues.

C) We will support employees in carrying out their responsibilities by ensuring they have the information, instruction, training and supervision they need.

D) We will make sure employees are aware of the hazards they face.

E) We will encourage employees to report incidents and accidents.

F) We will endeavour to reduce risks to the level that the law requires.

G) We will protect by all reasonable means anyone who will be affected by our work and in particular those to whom we have duties under the Health and Safety at Work Act and relevant legislation. IMPLEMENTATION

Risk Assessment plays a key part of in the undertaking of our works. We have the competence within the Company to undertake risk assessments and to write safe systems of work to minimize risks.

Our employees are selected that they are mentally and physically capable of undertaking the work they do. All employees are trained and certificated in the use of the machinery and tools they use and for the environment in which they work. eg Street Works accredited for working in the public highway. This will apply when someone joins the Company or when the roles are changed within the Company.

We will ensure that any vehicles; plant, and equipment that we use comply with any legal requirements and appropriate technical standards.

Any materials or substances that we use will also apply to any legal requirement and technical standard.

A good Health and safety performance is an essential part of our business. Our clients/customers are entitled to ourselves performing works with minimum risk.

I will ensure that this policy is reviewed at least once per year so that it remains up to date, relevant and any current legislation incorporated in the policy and acted upon. Any risk arising which occurs during the construction of the works and not covered under the site risk assessment will be immediately reported to me by the operatives and I will decide and inform them what actions are required to mitigate the risk.

David Stone, Last update April 2019 Method Statement and Step by Step guide, identified from the risk assessment for the laying of a 100mm dia foul sewer to serve Lathkill Lodge, Picory Corner, Bakewell, Derbyshire, DE45 1LB.

The first part of the works is to construct a private sewage pumping station and a 90mm dia rising main to serve Lathkill Lodge. (a private dwelling house). This will replace an existing outdated septic tank in the grounds of the Lodge. This rising main will remain in private ownership of Stanton Estates.

The second part of the works is to make a 100mm dia clayware gravity sewer connection from the demarcation manhole to the 375mm dia combined sewer owned by Severn Trent Water. This will be by a saddle junction positioned at 2 O’clock on the 375mm dia pipe. All this work is in open field which is owned by Stanton Estates. The attached drawing shows the location and the cross section of the proposed connection.

The risk assessment and method statement refer to the gravity connection only as the rising main is works under private ownership.

Excavation work for the laying of a 100mm dia clay foul water sewer connection, 8.0 long, from the demarcation chamber in the field at Picory Corner to STW Ltd’s 375mm dia combined sewer also sited in the field is to be undertaken by D Stone. The field is in the ownership of Stanton Estates.

The connection is to be made approx 2.0m deep by a 100mm dia saddle connection at co-ordinates X 424046 & Y 365093

The works will be carried out in open cut excavation using a tracked 360-degree excavator, compressor and by hand. Delivery and removal of materials will be by dumper. All excess spoil is to be removed by D Stone Ltd a Environmental Agency Waste Carriers Licence is held by ourselves. £ 5.0 million public liability insurance is carried by D Stone.

The machine operatives and drivers and those persons working on site are trained and experienced operatives in the use of all this equipment and are machine ticketed, thus any potential danger from the equipment itself is a low risk. Operatives entering trench line and manhole are confined spaces trained.

Any person working or entering the site will have to wear personal protective equipment, high visibility vest, steel toe cap boots, safety helmet in trench or when working near machines. We are aware that whilst carrying out excavation works on site it creates potential danger to the public, ourselves and other site personnel.

A site specific risk assessment has been carried out for this site (separate copy enclosed ie Risk 1 Risk 2 and Risk 3) and all my staff and site operatives have read and are aware of these risks and will follow the control measures put in place during our site works to minimize risk.

Any unforeseen risk situation arising on site will be reported to me immediately and action will be taken to mitigate that risk.

Day 1. Action

Set up barriers / fencing to the excavation location to safeguard any public, live stock and site personnel at the sewer connection length in the field.

Identify and mark up, all utility services in this location and carry out CAT scan for electric and telecom to avoid cable strike. Will use Dial before you dig notification prior to start.

If services are sited at the location of the proposed sewer connection point or on the line then carefully excavate by hand to locate prior to any machine excavation.

Excavate to locate any services in lateral trench and support to excavation as required. Excavate to locate STW Ltd’s 375mm dia combined sewer and make 100mm dia saddle connection. This work only to be done in dry weather and low flow conditions in the main sewer.

Request inspection by STW Ltd Inspector, 24 hour notice required.

Day 2. Action

Ensuring barriers and fencing are in position. Reposition or replace if any are damaged, missing or knocked over.

Construct the lateral 100mm dia clayware connection from the main sewer to the upvc demarcation manhole approx 1.0m deep. Gradient 1 in 40.

Class S bed and surround to be used to the lateral connection.

A heavy duty manhole is to be used on the demarcation manhole as tractors and farm machinery is used in the field.

Day 3. Action

Ensuring barriers and fencing are in position. Reposition or replace if any are damaged, missing or knocked over.

Once the connection has been inspected and approved by the STW Ltd Inspector the trench to the lateral connection can be backfilled. D. Stone GROUNDWORK CONTRACTORS

Bradshaws Yard Staden Lane Buxton Derbyshire SK17 9RZ

Mobile: 07970 281 204 Email: dstoneid@outlook.com

SECTION THRU PROPOSED EXCAVATION FOR RISING MAIN LATHKILL LODGE PICKORN CORNER BACKEWELL

Scale 1: 50.

SECTION OF TRENCH Scale 1: 20

150 mm top soil to be kept and re-used. 650 mm Foxearth to be kept and reinstated. 300 mm spoil to tip. 10 mm inert stone backfill surround to rising main, Class 5.

Kev 1 27/4/19